I’ve only seen them both once. Though after seeing Romulus, I’m going to go back and watch all the movies again. I’m a pretty big fan of the rest of the movies to varying degrees. My thoughts were that outside of the Alien universe they could be OK scifi movies. But as part of the Alien lore, I felt they were poorly told, felt rushed, and didn’t feel consistent with the others. Having the xenomorphs designed felt like a cheap shot. The alien in the first one was scary as hell because it evolved as a perfect hunter. All it did was eat and breed, and neither of those things were less than nightmarish. It felt like Scott was trying to tell a bigger story than the series needed and really got away from O’Bannon’s vision (the same can be said about 3 and 4. I’d still argue that they felt like the same universe though)
Like I say though, I’ve only seen them once, and it’s been a while.
It was almost as good as the first two. It was so fun, scary, and familiar. There were a handful of fan service things (shots, lines, props…) that felt like actual fan service and not nostalgia boner bullshit.